University:
York University
Course:
PSYC 2021 | Statistical Methods I
Academic year:

2024
Views:

387

Pages:

2
Author:

Nick T.

The Mode • the mode is the score or category that has the greatest frequency of any score in the frequency distribution - Can be used with any Scale of measurement - Corresponds to an actual Score in the data it is possible to have more than one mode • For ordinal or nominal data find the mode of the Signing bonuses of 8 NFL players for a specific year. The bonuses in millions of dollars are 18, 14, 34.5, 10, 11.3, 10, 12.4,10 -you may find it easier to sort first 10,10,10, 11.3, 12.4, 14, 18, 34.5 - Select value that occurs the most 10 Central Tendency and the Shape of the Distribution Symmetrical distributions - mean and median have Same value if there is exactly one mode, it has same valve as the mean and the mestian distribution may have more than one mode, or no mode at all Central Tendency in Skewed Distribution mean, influenced by extreme scores, is found far toward the long tail (+or-) • median is found toward the long tail, but not as far as the mean if mean - median 70, the distribution is positively Skewed if mean medianso the distribution is negativet skewed Learning Check a distribution of scores shoves mean = 31 and median=43. This distribution is probably a) positively skewed b) negatively Skewed c) bimodal d) open-ended